Chapter 4: Changes in the Ecosystems

A desert is a _________________________ environment for a cow.

 

• good

• bad

• maybe

Tags

NGSS.MS-LS1-5

Changes cause an unbalanced ecosystem.    

• true

• false

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NGSS.MS-LS2-4

Living things get what they need from the ________________________________in which they live.

• land

• air

• environment

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Animals provide the oxygen that plants need to live.   

• true

• false

Ecosystems are healthy when all their parts are in ______________________________.

• balanced

• unbalanced

• threaten

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The organism that is harmed in a close relationship between two living things is called a _____________________________________.

 

• host

• parasite

• predator

An organism that competes successfully is more likely to ___________________________ and reproduce.

• ran away

• die

• survive

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NGSS.MS-LS2-1

NGSS.MS-LS4-4

Organisms in an ecosystem ____________________ for and share resources.

• compete

• survive

• coexist

Parasites ______________________________ the organism they live on.

• harm

• help

• shares

As a population __________________________, more food, more water, and more living space are needed.

• increases

• decreases

• maintains

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4